Tire Pressure

[envsaf]

I own a 2001 KIWI 23B. The sticker on the side that list the tires and tire pressure has worn off. It has the standard ST 185/80 R13 Power King Towmax STR tires. Can someone tell me what the cold tire pressure should be? Thanks

[Jagiven]

All ST tires are designed to be ran at maximum tire pressure, so fill the tire to the maximum pressure stated on the sidewall of the tire, and you will be good to go!

Happy camping

[oldmanAZ]

Welcome to the forum.

The max pressure is (should be?) molded into the side of the tire. Use that pressure.

As an alternative, you could google Power King Towmax STR and see if you can find a chart from the manufacturer.

[Camper_bob]

I would also check the date stamps on those tires. Tow Max tires are not highly regarded (they've earned the nick name "Blow Max"), so if they are more than about 4 years old, I would replace them anyway. I would go up one load range more than technically required with the new set as well. Check your wheels to make sure they can handle the max pressure from the higher rated tire before you buy.

[Bassdogs]

Originally Posted by envsaf

I own a 2001 KIWI 23B. The sticker on the side that list the tires and tire pressure has worn off. It has the standard ST 185/80 R13 Power King Towmax STR tires. Can someone tell me what the cold tire pressure should be? Thanks

Every towmax I've ever seen has a psi max of 65.

[DocBrown]

The 13" ST tires on Jayco hybrids are listed as a max of 50 psi, regardless of brand. This was the case with our old '03 Kiwi 17a and also our current X20E. There is a blurb in the manual about keeping them at the max pressure on the sidewall.

The Tow Max 13" tires are not an issue. The blow out problem was with the 14" and 15" tires, mostly the 15" in. Mine are the original tires and have been just fine. Yours must have been put on more recently as the OEM tires in the early 2000s were Goodyear Marathons.

[envsaf]

Thanks DocBrown. Tires are only 2 years old and only have about 1500 miles on them. I have been running them at 50 psi but just wanted to know if the sticker said the same. No help from Jayco or Power King. Getting ready to take a 7000 mile 2 month trip around the US. From NC to MD, ND, WY, CA, AZ, TX and back home. So thanks to all.

[Jagiven]

Originally Posted by DocBrown

The 13" ST tires on Jayco hybrids are listed as a max of 50 psi, regardless of brand. This was the case with our old '03 Kiwi 17a and also our current X20E. There is a blurb in the manual about keeping them at the max pressure on the sidewall.

The Tow Max 13" tires are not an issue. The blow out problem was with the 14" and 15" tires, mostly the 15" in. Mine are the original tires and have been just fine. Yours must have been put on more recently as the OEM tires in the early 2000s were Goodyear Marathons.

Hey Doc, I upgraded my tires from Towmax to Carlisle last year. My new 13" tires are 65psi. These tires are fairly new to the market.

[DocBrown]

Originally Posted by Jagiven

Hey Doc, I upgraded my tires from Towmax to Carlisle last year. My new 13" tires are 65psi. These tires are fairly new to the market.

Good to know! Thanks!

[Dagwood]

Originally Posted by DocBrown

The 13" ST tires on Jayco hybrids are listed as a max of 50 psi, regardless of brand. This was the case with our old '03 Kiwi 17a and also our current X20E. There is a blurb in the manual about keeping them at the max pressure on the sidewall.

The Tow Max 13" tires are not an issue. The blow out problem was with the 14" and 15" tires, mostly the 15" in. Mine are the original tires and have been just fine. Yours must have been put on more recently as the OEM tires in the early 2000s were Goodyear Marathons.

X2 on the tires. My Towmax tires still look new and are holding pressure no problem. My X20E is a 2013. But for the small doubt in my mind about these tires and for security, I have TPMS sensors on all 4.